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        <title>第 6 章 企业真实面试题 · 大数据 Fulume 课堂笔记</title>
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                    第 1 章 概述
            
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                    1.2 Flume 组成架构
            
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                    1.3 Flume 拓扑架构
            
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                    1.4 Flume 内部原理
            
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                    第 2 章 快速入门
            
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                    第 3 章 企业开发案例
            
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                    3.1 官方案例:监控端口数据
            
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                    3.2 实时读取本地文件到HDFS案例
            
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                    3.3 实时读取目录文件到 HDFS
            
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                    3.4 单数据源多出口案例(选择器)
            
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                    3.5 单数据源多出口案例(Sink组)
            
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                    3.6 多数据源汇总案例
            
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                    第 4 章 Flume 监控之 Ganglia
            
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                    4.1 Ganglia 的安装和部署
            
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                    4.2 操作 Flume 测试监控
            
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                    第 5 章 自定义 source
            
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                    5.1 需求
            
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                    5.2 分析
            
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                    5.3 编码
            
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                    5.4 测试
            
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                    第 6 章 企业真实面试题
            
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                                <h1 id="&#x7B2C;-6-&#x7AE0;-&#x4F01;&#x4E1A;&#x771F;&#x5B9E;&#x9762;&#x8BD5;&#x9898;">&#x7B2C; 6 &#x7AE0; &#x4F01;&#x4E1A;&#x771F;&#x5B9E;&#x9762;&#x8BD5;&#x9898;</h1>
<h2 id="61-&#x4F60;&#x662F;&#x5982;&#x4F55;&#x5B9E;&#x73B0;flume&#x6570;&#x636E;&#x4F20;&#x8F93;&#x7684;&#x76D1;&#x63A7;&#x7684;">6.1 &#x4F60;&#x662F;&#x5982;&#x4F55;&#x5B9E;&#x73B0;Flume&#x6570;&#x636E;&#x4F20;&#x8F93;&#x7684;&#x76D1;&#x63A7;&#x7684;</h2>
<p>&#x4F7F;&#x7528;&#x7B2C;&#x4E09;&#x65B9;&#x6846;&#x67B6;Ganglia&#x5B9E;&#x65F6;&#x76D1;&#x63A7;Flume&#x3002;</p>
<h2 id="62-flume&#x7684;source&#xFF0C;sink&#xFF0C;channel&#x7684;&#x4F5C;&#x7528;&#xFF1F;&#x4F60;&#x4EEC;source&#x662F;&#x4EC0;&#x4E48;&#x7C7B;&#x578B;&#xFF1F;">6.2 Flume&#x7684;Source&#xFF0C;Sink&#xFF0C;Channel&#x7684;&#x4F5C;&#x7528;&#xFF1F;&#x4F60;&#x4EEC;Source&#x662F;&#x4EC0;&#x4E48;&#x7C7B;&#x578B;&#xFF1F;</h2>
<p>1&#x3001;&#x4F5C;&#x7528;
&#xFF08;1&#xFF09;Source&#x7EC4;&#x4EF6;&#x662F;&#x4E13;&#x95E8;&#x7528;&#x6765;&#x6536;&#x96C6;&#x6570;&#x636E;&#x7684;&#xFF0C;&#x53EF;&#x4EE5;&#x5904;&#x7406;&#x5404;&#x79CD;&#x7C7B;&#x578B;&#x3001;&#x5404;&#x79CD;&#x683C;&#x5F0F;&#x7684;&#x65E5;&#x5FD7;&#x6570;&#x636E;&#xFF0C;&#x5305;&#x62EC;avro&#x3001;thrift&#x3001;exec&#x3001;jms&#x3001;spooling directory&#x3001;netcat&#x3001;sequence generator&#x3001;syslog&#x3001;http&#x3001;legacy
&#xFF08;2&#xFF09;Channel&#x7EC4;&#x4EF6;&#x5BF9;&#x91C7;&#x96C6;&#x5230;&#x7684;&#x6570;&#x636E;&#x8FDB;&#x884C;&#x7F13;&#x5B58;&#xFF0C;&#x53EF;&#x4EE5;&#x5B58;&#x653E;&#x5728;Memory&#x6216;File&#x4E2D;&#x3002;
&#xFF08;3&#xFF09;Sink&#x7EC4;&#x4EF6;&#x662F;&#x7528;&#x4E8E;&#x628A;&#x6570;&#x636E;&#x53D1;&#x9001;&#x5230;&#x76EE;&#x7684;&#x5730;&#x7684;&#x7EC4;&#x4EF6;&#xFF0C;&#x76EE;&#x7684;&#x5730;&#x5305;&#x62EC;Hdfs&#x3001;Logger&#x3001;avro&#x3001;thrift&#x3001;ipc&#x3001;file&#x3001;Hbase&#x3001;solr&#x3001;&#x81EA;&#x5B9A;&#x4E49;&#x3002;</p>
<p>2&#x3001;&#x6211;&#x516C;&#x53F8;&#x91C7;&#x7528;&#x7684;Source&#x7C7B;&#x578B;&#x4E3A;&#xFF1A;
&#xFF08;1&#xFF09;&#x76D1;&#x63A7;&#x540E;&#x53F0;&#x65E5;&#x5FD7;&#xFF1A;exec
&#xFF08;2&#xFF09;&#x76D1;&#x63A7;&#x540E;&#x53F0;&#x4EA7;&#x751F;&#x65E5;&#x5FD7;&#x7684;&#x7AEF;&#x53E3;&#xFF1A;netcat</p>
<h2 id="63--flume-&#x7684;-channel-selectors">6.3  Flume &#x7684; Channel Selectors</h2>
<p><img src="http://lizhenchao.oss-cn-shenzhen.aliyuncs.com/1541580719.png-atguiguText" alt=""></p>
<h2 id="64-flume-&#x53C2;&#x6570;&#x8C03;&#x4F18;">6.4 Flume &#x53C2;&#x6570;&#x8C03;&#x4F18;</h2>
<ol>
<li><p>Source
&#x589E;&#x52A0;Source&#x4E2A;&#x6570;&#xFF08;&#x4F7F;&#x7528;Tair Dir Source&#x65F6;&#x53EF;&#x589E;&#x52A0;FileGroups&#x4E2A;&#x6570;&#xFF09;&#x53EF;&#x4EE5;&#x589E;&#x5927;Source&#x7684;&#x8BFB;&#x53D6;&#x6570;&#x636E;&#x7684;&#x80FD;&#x529B;&#x3002;
&#x4F8B;&#x5982;&#xFF1A;&#x5F53;&#x67D0;&#x4E00;&#x4E2A;&#x76EE;&#x5F55;&#x4EA7;&#x751F;&#x7684;&#x6587;&#x4EF6;&#x8FC7;&#x591A;&#x65F6;&#x9700;&#x8981;&#x5C06;&#x8FD9;&#x4E2A;&#x6587;&#x4EF6;&#x76EE;&#x5F55;&#x62C6;&#x5206;&#x6210;&#x591A;&#x4E2A;&#x6587;&#x4EF6;&#x76EE;&#x5F55;&#xFF0C;&#x540C;&#x65F6;&#x914D;&#x7F6E;&#x597D;&#x591A;&#x4E2A; Source &#x4EE5;&#x4FDD;&#x8BC1; Source &#x6709;&#x8DB3;&#x591F;&#x7684;&#x80FD;&#x529B;&#x83B7;&#x53D6;&#x5230;&#x65B0;&#x4EA7;&#x751F;&#x7684;&#x6570;&#x636E;&#x3002;
batchSize &#x53C2;&#x6570;&#x51B3;&#x5B9A; Source &#x4E00;&#x6B21;&#x6279;&#x91CF;&#x8FD0;&#x8F93;&#x5230; Channel &#x7684;event&#x6761;&#x6570;&#xFF0C;&#x9002;&#x5F53;&#x8C03;&#x5927;&#x8FD9;&#x4E2A;&#x53C2;&#x6570;&#x53EF;&#x4EE5;&#x63D0;&#x9AD8; Source &#x642C;&#x8FD0; Event &#x5230; Channel &#x65F6;&#x7684;&#x6027;&#x80FD;&#x3002;</p>
</li>
<li><p>Channel 
type &#x9009;&#x62E9; memory &#x65F6; Channel &#x7684;&#x6027;&#x80FD;&#x6700;&#x597D;&#xFF0C;&#x4F46;&#x662F;&#x5982;&#x679C; Flume &#x8FDB;&#x7A0B;&#x610F;&#x5916;&#x6302;&#x6389;&#x53EF;&#x80FD;&#x4F1A;&#x4E22;&#x5931;&#x6570;&#x636E;&#x3002;type &#x9009;&#x62E9; file &#x65F6; Channel &#x7684;&#x5BB9;&#x9519;&#x6027;&#x66F4;&#x597D;&#xFF0C;&#x4F46;&#x662F;&#x6027;&#x80FD;&#x4E0A;&#x4F1A;&#x6BD4; memory channel &#x5DEE;&#x3002;
&#x4F7F;&#x7528;file Channel&#x65F6; dataDirs &#x914D;&#x7F6E;&#x591A;&#x4E2A;&#x4E0D;&#x540C;&#x76D8;&#x4E0B;&#x7684;&#x76EE;&#x5F55;&#x53EF;&#x4EE5;&#x63D0;&#x9AD8;&#x6027;&#x80FD;&#x3002;
Capacity &#x53C2;&#x6570;&#x51B3;&#x5B9A; Channel &#x53EF;&#x5BB9;&#x7EB3;&#x6700;&#x5927;&#x7684; event &#x6761;&#x6570;&#x3002;transactionCapacity &#x53C2;&#x6570;&#x51B3;&#x5B9A;&#x6BCF;&#x6B21; Source &#x5F80; channel &#x91CC;&#x9762;&#x5199;&#x7684;&#x6700;&#x5927;event &#x6761;&#x6570;&#x548C;&#x6BCF;&#x6B21; Sink &#x4ECE;channel &#x91CC;&#x9762;&#x8BFB;&#x7684;&#x6700;&#x5927; event &#x6761;&#x6570;&#x3002;transactionCapacity &#x9700;&#x8981;&#x5927;&#x4E8E; Source &#x548C;Sink&#x7684;batchSize &#x53C2;&#x6570;&#x3002;</p>
</li>
<li><p>Sink 
&#x589E;&#x52A0; Sink &#x7684;&#x4E2A;&#x6570;&#x53EF;&#x4EE5;&#x589E;&#x52A0; Sink &#x6D88;&#x8D39; event &#x7684;&#x80FD;&#x529B;&#x3002;Sink &#x4E5F;&#x4E0D;&#x662F;&#x8D8A;&#x591A;&#x8D8A;&#x597D;&#x591F;&#x7528;&#x5C31;&#x884C;&#xFF0C;&#x8FC7;&#x591A;&#x7684; Sink &#x4F1A;&#x5360;&#x7528;&#x7CFB;&#x7EDF;&#x8D44;&#x6E90;&#xFF0C;&#x9020;&#x6210;&#x7CFB;&#x7EDF;&#x8D44;&#x6E90;&#x4E0D;&#x5FC5;&#x8981;&#x7684;&#x6D6A;&#x8D39;&#x3002;
batchSize &#x53C2;&#x6570;&#x51B3;&#x5B9A; Sink &#x4E00;&#x6B21;&#x6279;&#x91CF;&#x4ECE; Channel &#x8BFB;&#x53D6;&#x7684; event &#x6761;&#x6570;&#xFF0C;&#x9002;&#x5F53;&#x8C03;&#x5927;&#x8FD9;&#x4E2A;&#x53C2;&#x6570;&#x53EF;&#x4EE5;&#x63D0;&#x9AD8; Sink &#x4ECE; Channel &#x642C;&#x51FA; event &#x7684;&#x6027;&#x80FD;&#x3002;</p>
</li>
</ol>
<h2 id="65-flume-&#x7684;&#x4E8B;&#x52A1;&#x673A;&#x5236;">6.5 Flume &#x7684;&#x4E8B;&#x52A1;&#x673A;&#x5236;</h2>
<p>Flume&#x7684;&#x4E8B;&#x52A1;&#x673A;&#x5236;&#xFF08;&#x7C7B;&#x4F3C;&#x6570;&#x636E;&#x5E93;&#x7684;&#x4E8B;&#x52A1;&#x673A;&#x5236;&#xFF09;&#xFF1A;</p>
<p>Flume &#x4F7F;&#x7528;&#x4E24;&#x4E2A;&#x72EC;&#x7ACB;&#x7684;&#x4E8B;&#x52A1;&#x5206;&#x522B;&#x8D1F;&#x8D23;&#x4ECE; Soucrce &#x5230; Channel&#xFF0C;&#x4EE5;&#x53CA;&#x4ECE; Channel &#x5230;Sink &#x7684;&#x4E8B;&#x4EF6;&#x4F20;&#x9012;&#x3002;</p>
<p>&#x6BD4;&#x5982; spooling directory source &#x4E3A;&#x6587;&#x4EF6;&#x7684;&#x6BCF;&#x4E00;&#x884C;&#x521B;&#x5EFA;&#x4E00;&#x4E2A;&#x4E8B;&#x4EF6;&#xFF0C;&#x4E00;&#x65E6;&#x4E8B;&#x52A1;&#x4E2D;&#x6240;&#x6709;&#x7684;&#x4E8B;&#x4EF6;&#x5168;&#x90E8;&#x4F20;&#x9012;&#x5230; Channel &#x4E14;&#x63D0;&#x4EA4;&#x6210;&#x529F;&#xFF0C;&#x90A3;&#x4E48; Soucrce &#x5C31;&#x5C06;&#x8BE5;&#x6587;&#x4EF6;&#x6807;&#x8BB0;&#x4E3A;&#x5B8C;&#x6210;&#x3002;</p>
<p>&#x540C;&#x7406;&#xFF0C;&#x4E8B;&#x52A1;&#x4EE5;&#x7C7B;&#x4F3C;&#x7684;&#x65B9;&#x5F0F;&#x5904;&#x7406;&#x4ECE; Channel &#x5230; Sink &#x7684;&#x4F20;&#x9012;&#x8FC7;&#x7A0B;&#xFF0C;&#x5982;&#x679C;&#x56E0;&#x4E3A;&#x67D0;&#x79CD;&#x539F;&#x56E0;&#x4F7F;&#x5F97;&#x4E8B;&#x4EF6;&#x65E0;&#x6CD5;&#x8BB0;&#x5F55;&#xFF0C;&#x90A3;&#x4E48;&#x4E8B;&#x52A1;&#x5C06;&#x4F1A;&#x56DE;&#x6EDA;&#x3002;&#x4E14;&#x6240;&#x6709;&#x7684;&#x4E8B;&#x4EF6;&#x90FD;&#x4F1A;&#x4FDD;&#x6301;&#x5230; Channel &#x4E2D;&#xFF0C;&#x7B49;&#x5F85;&#x91CD;&#x65B0;&#x4F20;&#x9012;&#x3002;</p>
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